CN1113577A - Watch including a manual control device - Google Patents
Watch including a manual control device Download PDFInfo
- Publication number
- CN1113577A CN1113577A CN95103088A CN95103088A CN1113577A CN 1113577 A CN1113577 A CN 1113577A CN 95103088 A CN95103088 A CN 95103088A CN 95103088 A CN95103088 A CN 95103088A CN 1113577 A CN1113577 A CN 1113577A
- Authority
- CN
- China
- Prior art keywords
- watch
- control device
- wrist
- hand
- capacitive transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000010355 oscillation Effects 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 abstract 3
- 230000003071 parasitic effect Effects 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 description 19
- 230000006870 function Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B25/00—Indicating the time by other means or by combined means
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G21/00—Input or output devices integrated in time-pieces
- G04G21/08—Touch switches specially adapted for time-pieces
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Electronic Switches (AREA)
Abstract
This watch (1) includes a case (2), a glass (3) and at least one manual control device (22), which comprises a capacitive sensor (20) with a first electrode (5) arranged on the internal face (6) of the glass (3). The selective positioning of a finger (10) of a wearer of the watch (1) on the external face of the glass (3) enables a first capacity (Cd) to be formed between the first electrode (5) and earth (11) constituted by the case (2). A parasitic capacity (Cp) is present between the first electrode and the case. The manual control device (22) also includes a voltage-frequency converter (22) whose oscillation frequency is determined by the first capacity (Cd), when the latter is formed by the presence of the finger, in combination with the parasitic capacity (Cp).
Description
The present invention is relevant with the wrist-watch that contains a manual device, especially relevant with such wrist-watch: it comprises a capacitive transducer, first capacitor plate that is placed on the table interior surface, first electric capacity that forms between one first electrode and the ground, when the wearer of wrist-watch was placed on the outside surface of wrist-watch with finger, electric capacity had just formed.
The wrist-watch that contains the hand-control device that is used for replacing general external control device (such as button) has been widely known by the people and has been used to control the various functions of wrist-watch, such as regularly or start and stop clocking.Some device is made of at least one the transparent electrode that is placed on the table interior surface, and wrist-watch contains a circuit, is used for processing signals, produces these signals when the table relative with this electrode covers when the wearer of wrist-watch is placed on his finger.
In patent CH 607 872, disclosed such device, in the layout that this patent disclosed, the inside surface that conducting stratum is disposed in the table lid to be forming a capacitive transducer, this sensor with one independently capacitor constitute a capacitive divider.The high-frequency ac voltage that oscillator (generator) produces is added on this capacitive divider.Voltage between detection independent capacitance device and the capacitive transducer.Whether being placed on table according to finger covers, the voltage that detects changes between two values, a comparer is compared the voltage that detects with a reference voltage, a control signal is provided then, whether is placed on table according to finger and covers this control signal and have a high logic state or low logic state.
Always there is a stray capacitance between the ground that is arranged in the conducting stratum that covers of table and forms by watchcase.This electric capacity is in parallel with capacitive transducer.Therefore, the electromotive force U that detects by comparer
OutCan represent by following relational expression:
（U
out＝U
in（C
ref）/（C
p+C
d+C
ref
U wherein
InBe that oscillator is added to the voltage on the capacitive divider, C
pBe stray capacitance, C
dBe the electric capacity of capacitive transducer, C
RefBe the electric capacity of independent capacitance device.
This device has following shortcoming: for an acceptable resolution, capacitor C are provided to them
dAnd C
RefMust be more much bigger than stray capacitance, thus high current drain caused, significantly reduce the watch cell life-span.In addition, the comparer that will be compared with a reference voltage by the voltage that capacitive divider detects is an analog element, and in order to have permissible accuracy, this analog element must comprise the transistor arrangement of a complexity.
When a wrist-watch contains a large amount of hand-control device, especially can feel these shortcomings.For example, so-called " handwriting recognition " wrist-watch is exactly this situation, when user's finger covers " writing " symbol at table, and an alphanumeric symbol (such as a numeral) for example, " handwriting recognition " wrist-watch can take orders.In this case, wrist-watch must be equipped the dozens of control device, and each control device has a capacitive transducer that is placed on the table cap surface to make the position of pointing on the table exterior surface to be immediately recognized out.In this case, the consumption of each control device constitutes the key factor in the life-span of decision watch cell.
An object of the present invention is to provide and be equipped with the wrist-watch that overcomes the hand-control device of these shortcomings to small part.
Therefore, the wrist-watch that the present invention relates to contains: constitute the watchcase on ground, and table lid and at least one hand-control device that links to each other with treatment circuit, by the effect of described hand-control device, this treatment circuit is carried out the predetermined function of wrist-watch, and hand-control device comprises:
-one capacitive transducer, it contains first capacitor plate that is positioned at the table interior surface, its another capacitor plate is formed by the outside surface that the user's of described wrist-watch finger is placed on the table lid, this capacitive transducer thereby be used to form first electric capacity, described wrist-watch also has second stray capacitance between described first capacitor plate and watchcase, and described hand-control device is characterized in that also comprising
-one voltage-frequency converter, its input is linked on the public connectors of described first capacitor plate and described second electric capacity,
-be connected in a frequency detector between described converter and described treatment circuit, make the variation person's of being to use the finger of the oscillation frequency of described converter whether be placed on function on the described outside surface of table lid.
Therefore,, compare, can reduce the electric capacity of capacitive transducer with the electric capacity of employed sensor in the prior art in order to obtain the resolution of the hand-control device similar to the resolution of aforementioned Swiss Patent device.Like this, the electric charge of required placement is significantly much weak on the capacitive transducer, and the result is that the energy consumption of each user when carrying out an order is lower.Thereby the life-span of prolongation watch cell.
In addition, by determine the key element of the frequency of voltage-frequency converter with the stray capacitance conduct of capacitive transducer and wrist-watch, the present invention can produce a control signal, the detection of the logic state of this control signal is finished by digital device, and digital device is finished simpler than the mimic channel that uses in the prior art.
Other characteristics of the present invention and advantage will occur in the following description, and below narration provides in the mode of example and referring to accompanying drawing purely, wherein:
-Fig. 1 is the diagram cross sectional view according to the layout of capacitive transducer of the present invention;
-Fig. 2 is the block diagram according to the preferred embodiment of the hand-control device that uses with wrist-watch of the present invention;
-Fig. 3 is that a width of cloth shows that its intermediate-resolution is the function of the electric capacity of capacitive transducer according to wrist-watch of the present invention with according to the synoptic diagram of the resolution that wrist-watch reached of prior art.
Fig. 1 has shown the cross sectional view of the wrist-watch 1 that contains watchcase 2 and Biao Gai 3.Electronic circuit 4 is disposed in the watchcase 2.Conducting electrode 5(is preferably transparent) be disposed on the inside surface 6 of table lid of wrist-watch 1.Electrode 5 is linked electronic circuit 4 by lead 7.Battery or other power supply 8 are also placed in the watchcase 2 and are linked the positive pole of electronic circuit 4 by lead 9.
Electrode 5 constitutes a pole plate of capacitive transducers 20, when the wearer of wrist-watch 1 when realizing the predetermined command of wrist-watch, he touches the position that table cover 3 outside surface top electrode 5, at this moment another pole plate 21 of his finger 10 formation capacitive transducers 20.By contacted with wearer's wrist and link the watchcase 2 of the negative pole of circuit 4 and battery 8, wearer's finger 10 is linked the ground 11 of circuit, the i.e. remainder of wearer's body.
Fig. 2 is the block diagram of the wrist-watch 1 employed hand-control device among Fig. 1, and this hand-control device can produce the triggering of control signal with response capacitive transducer 20.This device 22 is linked frequency detector DF and treatment circuit CE successively, and CE realizes that in a well-known manner the user wishes the function of carrying out.
Hand-control device 22 also contains the resistance 25,26 and 27 between the output that is series at amplifier 24 and the ground 11.The input of the homophase of amplifier 24 is linked on resistance 26 and 27 s' the joint.In such structure, amplifier 24 and resistance 25,26 and 27 constitute a Schmidt trigger (Schmitt trigger), at its output terminal 28(is resistance 25 and 26 s' contact) signal with high logic level or low logic level, this signal are provided is to be added in the paraphase input of amplifier 24 and the function of the relevant voltage values in the homophase input.Two Zener diodes (Zener diode) 29 and 30 that connect relatively are connected between output 28 and the ground 11 end to end, so that the stable voltage that defines these logic levels respectively.
Hand-control device 22 also comprises the resistance 31 between the paraphase input that is connected in output 28 and amplifier 24.This resistance 31 and capacitive transducer 20 and electric capacity 23 are formed in the part of low-pass filter of the output terminal integralization voltage of Schmidt trigger together.The electromotive force of electric capacity 20 and 23 capacitor plate is added in the paraphase input of amplifier 24.As a result, hand-control device 22 plays the effect of voltage-frequency converter, in other words, plays the effect of voltage-controlled oscillator.
In the embodiment shown in Figure 2, voltage-frequency converter just is designed to the form of astable multivibrator, because it produces a periodic signal with two quasi-stationary states when free oscillation.Yet it is superior especially that it also can be designed to the layout shown in voltage-controlled oscillator Fig. 2 of any type of periodic signal generator or other form, because its simple structure and without any need for high-precision electronic component.
T oscillation period of control device 22 is provided by following relational expression:
T＝2R
31C
totLn（1+（2R
26）/R
27
Here, R
31, R
26And R
27Be respectively the numerical value of resistance 31,26 and 27, C
TotBe the paraphase input of amplifier 24 and all total capacitances between the ground 11 and.Therefore as seen, the oscillation frequency of the output signal of hand-control device 22 and total capacitance C
TotBe inversely proportional to, the electric capacity of capacitive transducer and stray capacitance have determined the oscillation frequency value of hand-control device 22 together.
Therefore, whether the variation person's of being to use of the oscillation frequency of voltage-frequency converter finger is put in the function on the outside surface of showing lid.If the wearer's of wrist-watch 1 finger 10 is not placed on table and covers on 3, the pole plate 21 of capacitive transducer 20 just is not present in the circuit shown in Figure 2 so.In this case, total capacitance C
TotEqual the stray capacitance C between electrode 5 and the ground
pThe oscillation frequency of the output signal of control device 22 just is inversely proportional to stray capacitance C
p
On the other hand, when finger 10 is placed on table when cover on 3, constitute pole plate 21, capacitive transducer 21 just acts on control device 22 effectively.In this case, total capacitance C
TotEqual capacitor C
dAnd C
pAnd inverse.So the oscillation frequency and the capacitor C of the output signal of control device 22
dAnd C
pAnd be inversely proportional to.
Because needed signal packet is contained in the middle of its frequency rather than is contained in its absolute value of amplitude, so in order to extract this information, use the digital device of simple designs just much of that in the output signal.For example, this device can be finished by an impulse meter that is operated in a steady job cycle.Therefore, whether frequency and finger are placed on the outside surface of showing lid and can be directly represented by the umber of pulse of being received in this fixed cycle.Here describe this device no longer in more detail, this device is well-known to the professional of present technique.
Fig. 3 shows that to compare the present invention with resolution that is obtained in the prior art and energy consumption more superior.The horizontal ordinate of figure is marked with ratio C
p/ C
d, i.e. the stray capacitance of being set up between the fixed electorde 5 of capacitive transducer and the watchcase 2 and the capacitor C of capacitive transducer 20
dBetween relation.Being marked with the relative resolution of hand-control device at ordinate, in other words, is the low logic state of its output signal and the relation between the high logic state.
It should be noted that,, recently draw them by minimum electric voltage frequency is set at counter in order to set up curve 40 and 41 s' effective comparison.The same with the situation among the present invention, be when finger is taken away, to produce maximum voltage value (scope of considering to above-mentioned Swiss Patent).
By curve plotting 40 and 41 s' contrast, to compare with the situation of prior art, the embodiments of the invention shown in Fig. 2 have been obtained significant raising on resolution.For example, in capacitor C
dWith capacitor C
pValue situation about equating under, resolution improves 25% than the precision of prior art.
In addition, for example in order to obtain 0.5% resolution, capacitor C in prior art
dMust be at least than stray capacitance C
pBig twice is compared with obtaining the same watch cell energy that resolution consumed among the present invention, and this means has sizable increase on the watch cell energy consumption.It should be noted that, can not deviate from framework of the present invention according to the present invention wrist-watch is carried out several modifications and/or improvement.Especially, the present invention also considers to discern hand-written wrist-watch, and such wrist-watch has the hand-control device of a plurality of Fig. 2 types, is showing covering position so that follow the tracks of wrist-watch wearer's finger, can be identified thereby make the wearer cover numeral or the letter write at table.In this case, the frequency detector DF of all hand-control devices can link the treatment circuit CE of wrist-watch, and the electrode 5 of their capacitive transducer covers the appropriate pattern (motif) of formation on 3 at table.
In another embodiment, hand-control device contains the capacitive transducer of several above-mentioned institutes define styles, and the common contact between second electric capacity of first pole plate and each capacitive transducer is all linked the input end of a traffic pilot.In this case, the input of control device frequency detector is linked in the output of traffic pilot.
Like this, as long as a voltage-frequency converter judges that with the determined frequency of the operation of traffic pilot the professional of each capacitive transducer present technique is appreciated that the capacitor C of capacitive transducer shown in Figure 2
dFinger with the user changes at the particular location that table covers.Therefore, when be placed on the finger that covers of table near or during away from first pole plate of capacitive transducer, the oscillator frequency of voltage-frequency converter changes gradually.Put or leave the table lid in order to detect, corresponding to responsive threshold values of the frequency change of a being given definition over against the finger of capacitive transducer.When voltage-frequency converter frequency change during greater than responsive threshold values, this changes processed circuit and detects.For each capacitive transducer that constitutes hand-control device, its responsive threshold values can be different, and all threshold values can be stored in the internal memory of treatment circuit.
Contain under the situation of several capacitive transducers at a hand-control device, the position of user's finger can be surveyed by the caused frequency change of each capacitive transducer by analyzing.Therefore, for from farthest capacitive transducer of finger, the caused frequency change in position of the finger that is covered by table will be more remarkable.Therefore, by the frequency change of capacitive transducer is done as a whole the analysis, can determine the position of pointing.
Claims (5)
1, wrist-watch (1) contains the watchcase (2) that constitutes ground, table lid (3) and at least one hand-control device (22), this hand-control device is linked treatment circuit (CE), by the effect of described hand-control device (22), treatment circuit (CE) is used to carry out predetermined watch function, and this hand-control device comprises:
-comprise the capacitive transducer (20) of first pole plate (5) on the inside surface (6) that is placed on table lid (3), another pole plate of capacitive transducer optionally is made of the user's who is placed on the described wrist-watch (1) on the outside surface of showing lid (3) finger (10), and therefore described capacitive transducer (20) is used to constitute the first electric capacity (C
d), described wrist-watch (1) also has second stray capacitance between described first pole plate and watchcase (2).Described hand-control device (22) is characterized in that also comprising:
-voltage-frequency converter (22), its input are linked described first pole plate (5) and the described second electric capacity (C
p) between common contact.
-frequency detector (DF), it is connected between described converter (22) and the described treatment circuit (CE), thus the oscillation frequency of described converter changes the function that the outside surface of table lid was put or left to the person's of being to use finger.
2,, it is characterized in that described voltage-frequency converter (22) produces with the form of astable multivibrator according to the wrist-watch of claim 1.
3,, it is characterized in that common contact links the input end of the amplifier (24) of a part that constitutes described astable multivibrator according to the wrist-watch of claim 2.
4, according to the wrist-watch of aforementioned arbitrary claim, it is characterized in that it comprises a plurality of hand-control devices, the capacitive transducer of these hand-control devices covers at table jointly and forms a pattern (motif) and make that hand-written on the outside surface of described table lid can be identified, and the frequency detector of all control device (DF) is linked described treatment circuit (CE).
5, according to the wrist-watch of arbitrary claim of claim 1 to 3, it is characterized in that, it comprises a plurality of described capacitive transducers, these capacitive transducers cover at table together and constitute a pattern (motif) so that be identified in hand-written on the outside surface of described table lid, its feature is that also it also comprises an output and link the traffic pilot of the input of described voltage-frequency converter, the input that the common contact between described second electric capacity of described first pole plate and each described capacitive transducer is all linked described traffic pilot.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9403480A FR2717917B1 (en) | 1994-03-24 | 1994-03-24 | Watch with a manual control device. |
| FR9403480 | 1994-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1113577A true CN1113577A (en) | 1995-12-20 |
| CN1089914C CN1089914C (en) | 2002-08-28 |
Family
ID=9461396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95103088A Expired - Lifetime CN1089914C (en) | 1994-03-24 | 1995-03-23 | Watch including a manual control device |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5453960A (en) |
| EP (1) | EP0674247B1 (en) |
| JP (1) | JPH07280966A (en) |
| KR (1) | KR100319531B1 (en) |
| CN (1) | CN1089914C (en) |
| DE (1) | DE69525381T2 (en) |
| FR (1) | FR2717917B1 (en) |
| HK (1) | HK1012734A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103238121A (en) * | 2010-12-07 | 2013-08-07 | Eta瑞士钟表制造股份有限公司 | Watch with tactile zones of capacitive type comprising a battery hatch closed by an electrically conducting cover |
| TWI474239B (en) * | 2009-07-10 | 2015-02-21 | Em Microelectronic Marin Sa | Method of fabricating a glass with capacitive touch keys for an electronic instrument and instrument comprising the same |
| CN105266794A (en) * | 2015-11-02 | 2016-01-27 | 广东小天才科技有限公司 | Portable equipment and method for electrocardio detection |
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| DE19544460C1 (en) * | 1995-11-29 | 1997-08-28 | Junghans Uhren Gmbh | Clock, in particular wristwatch |
| DE69700422T2 (en) * | 1996-04-15 | 2000-03-02 | Pressenk Instr Inc | Touch sensor without pillow |
| US5940349A (en) * | 1997-02-20 | 1999-08-17 | Stewart; Michael A. | Watch with a face having tactile portions for activating functions |
| DE19747879A1 (en) * | 1997-10-21 | 1999-04-22 | Volker Prof Dr Hepp | User-friendly computer controlled clock with additional functions |
| DE69823793T2 (en) * | 1998-02-05 | 2005-05-19 | Asulab S.A. | Camera with touch-sensitive shutter |
| US6967902B1 (en) | 1999-07-14 | 2005-11-22 | Wc Man Productions | Voice feedback timer system |
| DE60038864D1 (en) | 2000-02-02 | 2008-06-26 | Asulab Sa | Glass for clock with radio |
| TW503344B (en) * | 2000-02-02 | 2002-09-21 | Asulab Sa | Crystal for a telephone watch |
| US6898155B1 (en) * | 2000-03-01 | 2005-05-24 | Can-Tron | Programmable reminder device having multi-event capacity |
| DE60042333D1 (en) * | 2000-11-17 | 2009-07-16 | Asulab Sa | Electronic clock with capacitive buttons on its cover glass |
| US6868046B2 (en) * | 2000-11-17 | 2005-03-15 | Asulab S.A. | Electronic watch including capacitive keys on its crystal |
| EP1220140A1 (en) * | 2000-12-27 | 2002-07-03 | Asulab S.A. | Method for recognising characters drawn manually on a capture area and electronic device for implementing the method |
| TWI258647B (en) * | 2001-12-27 | 2006-07-21 | Asulab Sa | Control method for executing functions in a diary watch |
| TWI262365B (en) * | 2001-12-27 | 2006-09-21 | Asulab Sa | Electronic watch and manual control device for executing functions thereof |
| CH697272B1 (en) * | 2002-07-19 | 2008-07-31 | Asulab Sa | An electronic timepiece including a game mode. |
| EP1394640B1 (en) * | 2002-08-30 | 2010-03-24 | Asulab S.A. | Timepiece with tactile reading and operation of time information |
| EP1457865B1 (en) | 2003-03-12 | 2017-11-08 | Asulab S.A. | Substrate with transparent electrodes and corresponding fabrication process |
| DE10326684A1 (en) * | 2003-06-03 | 2004-12-23 | Ego Control Systems Gmbh + Co. Kg | sensor device |
| DE102005000982B4 (en) * | 2005-01-07 | 2006-08-24 | Inventuum GbR (vertretungsberechtigter Gesellschafter: Sven-Erik Braitmayer, 80796 München) | Clock and method of controlling an item on the clock |
| EP1701229B1 (en) | 2005-03-09 | 2010-07-21 | ETA SA Manufacture Horlogère Suisse | Electronic watch with compass function |
| US7778118B2 (en) * | 2007-08-28 | 2010-08-17 | Garmin Ltd. | Watch device having touch-bezel user interface |
| US8824245B2 (en) | 2010-10-25 | 2014-09-02 | Advance Watch Company, Ltd. | Touch screen watch |
| US8941393B2 (en) * | 2011-01-14 | 2015-01-27 | Cypress Semiconductor Corporation | Detection of a conductive object during an initialization process of a touch-sensing device |
| EP2784607B1 (en) * | 2013-03-28 | 2017-01-18 | ETA SA Manufacture Horlogère Suisse | Watch comprising a flange |
| EP2884352A1 (en) * | 2013-12-16 | 2015-06-17 | ETA SA Manufacture Horlogère Suisse | Electromechanical or digital watch comprising a dial and method for manufacturing such a dial |
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-
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- 1994-03-24 FR FR9403480A patent/FR2717917B1/en not_active Expired - Lifetime
-
1995
- 1995-03-15 EP EP95103730A patent/EP0674247B1/en not_active Expired - Lifetime
- 1995-03-15 DE DE69525381T patent/DE69525381T2/en not_active Expired - Lifetime
- 1995-03-21 KR KR1019950005900A patent/KR100319531B1/en not_active IP Right Cessation
- 1995-03-22 US US08/408,310 patent/US5453960A/en not_active Expired - Lifetime
- 1995-03-23 CN CN95103088A patent/CN1089914C/en not_active Expired - Lifetime
- 1995-03-24 JP JP7090087A patent/JPH07280966A/en active Pending
-
1998
- 1998-12-17 HK HK98113854A patent/HK1012734A1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI474239B (en) * | 2009-07-10 | 2015-02-21 | Em Microelectronic Marin Sa | Method of fabricating a glass with capacitive touch keys for an electronic instrument and instrument comprising the same |
| CN103238121A (en) * | 2010-12-07 | 2013-08-07 | Eta瑞士钟表制造股份有限公司 | Watch with tactile zones of capacitive type comprising a battery hatch closed by an electrically conducting cover |
| CN103238121B (en) * | 2010-12-07 | 2016-03-02 | Eta瑞士钟表制造股份有限公司 | There is Capacitive touch district and comprise the table of the battery hatch closed by the cap seal conducted electricity |
| CN105266794A (en) * | 2015-11-02 | 2016-01-27 | 广东小天才科技有限公司 | Portable equipment and method for electrocardio detection |
| CN105266794B (en) * | 2015-11-02 | 2018-05-25 | 广东小天才科技有限公司 | Portable equipment and method for electrocardio detection |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69525381D1 (en) | 2002-03-21 |
| HK1012734A1 (en) | 1999-08-06 |
| JPH07280966A (en) | 1995-10-27 |
| CN1089914C (en) | 2002-08-28 |
| KR950033735A (en) | 1995-12-26 |
| US5453960A (en) | 1995-09-26 |
| FR2717917B1 (en) | 1996-05-03 |
| KR100319531B1 (en) | 2002-10-25 |
| DE69525381T2 (en) | 2002-12-05 |
| EP0674247A1 (en) | 1995-09-27 |
| FR2717917A1 (en) | 1995-09-29 |
| EP0674247B1 (en) | 2002-02-13 |
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